EP 2464872 B1 20180314 - BALANCED PRESSURE, VARIABLE DISPLACEMENT, DUAL LOBE, SINGLE RING, VANE PUMP
Title (en)
BALANCED PRESSURE, VARIABLE DISPLACEMENT, DUAL LOBE, SINGLE RING, VANE PUMP
Title (de)
MEHRLAPPIGE EINZELRING-FLÜGELZELLENPUMPE MIT DRUCKAUSGLEICH UND VARIABLER VERSCHIEBUNG
Title (fr)
POMPE À PALETTES ÉQUILIBRÉE EN PRESSION, À DÉPLACEMENT VARIABLE, À DEUX LOBES ET UNE BAGUE
Publication
Application
Priority
- US 53892609 A 20090811
- US 2010044960 W 20100810
Abstract (en)
[origin: WO2011019684A2] A pump including a pressure plate having two inlets and outlets, wherein each inlet has an auxiliary intake port in fluid communication with the inlet, and each outlet has an auxiliary discharge port in fluid communication with the outlet, and a cam/rotor assembly attached to the pressure plate. The cam/rotor assembly includes a rotatable cam having an opening, a rotor within the cam opening, the rotor having multiple radial slots, and multiple vanes that move within the slots, wherein a pumping chamber is defined by a space between rotor and cam. Rotor rotation within the cam causes the vanes to extend and retract within the pumping chamber. The movement of the vanes discharges into the outlets and auxiliary discharge ports a fluid drawn into the pumping chamber via inlets and auxiliary intake ports. The auxiliary inlet and auxiliary discharge ports reduce pressure pulsations in a variable displacement dual-lobe vane pump.
IPC 8 full level
F02M 37/04 (2006.01); F02M 59/12 (2006.01); F04C 2/344 (2006.01); F04C 14/10 (2006.01); F04C 15/00 (2006.01); F04C 15/06 (2006.01)
CPC (source: EP US)
F02M 37/04 (2013.01 - EP US); F04C 2/3446 (2013.01 - EP US); F04C 14/10 (2013.01 - EP US); F04C 15/0049 (2013.01 - EP US); F04C 15/06 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011019684 A2 20110217; WO 2011019684 A3 20110526; CA 2770324 A1 20110217; CA 2770324 C 20150922; CN 102498298 A 20120613; CN 102498298 B 20150401; EP 2464872 A2 20120620; EP 2464872 A4 20160608; EP 2464872 B1 20180314; US 2011038745 A1 20110217; US 8348645 B2 20130108
DOCDB simple family (application)
US 2010044960 W 20100810; CA 2770324 A 20100810; CN 201080040991 A 20100810; EP 10808606 A 20100810; US 53892609 A 20090811